SANTA CLARA — The 49ers’ regular-season finale against the Arizona Cardinals might be the final game in coach Jim Harbaugh’s 49ers tenure. If so, he isn’t letting on or getting nostalgic.

Instead, Harbaugh is approaching Sunday’s game at Levi’s Stadium as one more opportunity to compete, one more chance for his team to get another win before this season ends.

To that end, he shifted the focus to the players and what they have to gain from an otherwise meaningless game as the 49ers put the finishing touches on their first non-playoff season under Harbaugh.

Harbaugh said he wants his players to approach Sunday’s game as if their careers are on the line.

“How the players should respond is to go out there and show and prove that there’s another year of football that you, as a football player, can play for another whole year,” Harbaugh said. “That’s what you want to show, that’s what you want to prove, whether you’re a veteran player, a very young player or somewhere in between, or some player who thinks that he has that locked up. You never know.”

Harbaugh has one year left on the five-year, $25 million contract that he signed in 2011. Numerous reports have said that Harbaugh won’t be back in 2015.

Harbaugh declined to say whether he would consider resigning. Rather, he maintained his earlier stance that he will just let things play out naturally. He added that he already has “plowed that ground.”